The catch
SIHOO Doro C300 Pro V2
With so many moving parts, tuning takes time, and the 8D arms may feel overactive.
Side by side
SIHOO C300 Pro V2 vs Haworth Soji: Soji goes to shorter seat depths, and C300 comes with a headrest
Quick verdict
If you are after a mesh seat and an included headrest, C300 Pro V2 fits. Soji brings a shorter minimum seat depth, more depth travel and a cushioned seat.
Before you buy
Why, and what it costs you
Soji spans all of SIHOO's published depth range
It reaches 0.65 inch shorter and 0.25 inch deeper.
Where this comes from
16.9 minus 16.25 leaves 0.65. 18.75 minus 18.5 leaves 0.25 inches.
The catch
Haworth Soji
A firm seat and a lumbar pad that can feel direct take getting used to, especially until its height is right.
SIHOO Doro C300 Pro V2
- Why pick it
- You want mesh in the seat and in the back.
- A headrest in the package for reclined breaks appeals to you.
- The catch
- With so many moving parts, tuning takes time, and the 8D arms may feel overactive.
Haworth Soji
- Why pick it
- Your seat depth has to go below 16.9 inches.
- A foam seat and assembled delivery suit you better.
- The catch
- A firm seat and a lumbar pad that can feel direct take getting used to, especially until its height is right.
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What this page compares
C300 Pro V2 and Soji compared on seat material, head support and usable seat-depth range, including the fit differences that their adjustment lists hide.
Which one fits
Pick the situations that sound like you
Need a depth under 16.9 inches
Soji goes down to 16.25 inches.
- SIHOO Doro C300 Pro V2
- Caution
- Haworth Soji
- Better fit
Prefer a mesh seat
There is mesh under the sitter on SIHOO.
- SIHOO Doro C300 Pro V2
- Better fit
- Haworth Soji
- Caution
Want a headrest that's included
None comes with the selected Soji.
- SIHOO Doro C300 Pro V2
- Better fit
- Haworth Soji
- Caution
Prefer it delivered assembled
Soji comes already assembled.
- SIHOO Doro C300 Pro V2
- Good
- Haworth Soji
- Better fit
In practice
Differences you will notice
Soji spans all of SIHOO's published depth range
It reaches 0.65 inch shorter and 0.25 inch deeper.
How we worked this out
16.9 minus 16.25 leaves 0.65. 18.75 minus 18.5 leaves 0.25 inches.
A seat that is wider can still adjust less in depth
SIHOO is 0.5 inch wider, though its slide travels 0.9 inch less.
How we worked this out
20.5 minus 20 leaves 0.5. Soji has 2.5 inches of travel against 1.6 inches for SIHOO, which is a 0.9 inch difference.
Head support reshapes the reclined setup
The selected Soji leaves that area unsupported, while C300 Pro V2 includes a headrest.
How we worked this out
Weigh the headrest that SIHOO includes against the Soji configuration that has none, and don't assume a medical benefit.
Option A
SIHOO, Black, Standard
Doro C300 Pro V2
Seat depth, 8D synchronized arms and a broader sacral-lumbar system are what this newer full-body adaptive chair from SIHOO adds.
- Best for
- An all-mesh chair that is tall, highly adjustable and has a supportive headrest
Facts we checked
- Seat depth range of 16.9 to 18.5 inches
- Standard equipment includes eight-dimensional synchronized arms and an ultra-wide 3D headrest
- Official specifications give a 330 lb limit and 105, 120 and 135 degree recline positions
Option B
Haworth, Mist
Soji
This commercial task chair keeps things simple, with seat-depth control, synchronized tilt and a foam seat that supports well.
- Best for
- Shared or home offices that need a durable chair that is easy to adjust
Facts we checked
- An upright back lock is part of the synchronized tilt
- Adjustable depth and a waterfall edge feature on the seat
- North American manufacturing, BIFMA compliance and GREENGUARD Gold are all listed by Haworth
Spec by spec
Where they really differ
| Spec | SIHOO Doro C300 Pro V2 | Haworth Soji | In practice |
|---|---|---|---|
| Seat material | Mesh | Cushioned upholstery | Support underneath and the feel of contact are different. |
| Seat depth | 16.9 to 18.5 inches | 16.25 to 18.75 inches | At both ends, Soji covers a wider range. |
| Seat width | 20.5 inches | 20 inches | By the listed seat dimensions, C300 Pro V2 is 0.5 inch wider. |
| Headrest | Included adjustable headrest | No headrest on selected configuration | C300 includes head support, so you needn't shop for an accessory. |
| Rated load | 330 lb | 350 lb | Soji's rated capacity is 20 lb higher. |
Trade-offs
What each pick costs you
With SIHOO Doro C300 Pro V2
- At the time of review, the official US standard version was backordered. On the exact Amazon page, availability depended on the offer.
With Haworth Soji
- When checked, the Mist listing on Amazon had few offers available, but Haworth still sells Soji direct.
Change of plan
When the answer changes
You want a foam seat and more control over the lower back
Neither model fits. On Leap, a cushioned seat comes together with separate controls for lumbar firmness and recline.
Decision guide
How to decide
A mesh seat and included headrest favor C300 Pro V2. A shorter minimum seat depth, greater depth travel and a cushioned seat favor Soji.
If the seat setting must be short
When you need less than 16.9 inches of depth, the clearer fit advantage goes to Soji, whose range also extends farther at the deep end. The SIHOO advertises more adjustment axes, but they do not override those actual seat endpoints.
In a warm room
Mesh covers both contact surfaces on C300 Pro V2, while Soji puts a cushioned seat beneath its mesh back. That makes the SIHOO worth trying if you dislike upholstered seats. The distinction lies in the material, and no measured temperature reduction is claimed.
For work that leads into reclined breaks
An adjustable headrest and a feature set built around recline come with the SIHOO. Soji has a simpler task-chair setup and assembled delivery. See where the headrest lands on your body, since getting one in the box does not guarantee useful support.
What this page can’t tell you
- The figures behind this comparison are documented controls and dimensions. We have not done hands-on measurements of pressure, durability or comfort.
- What a manufacturer warranty covers depends on seller eligibility and regional terms. Neither chair is described as treating pain.
By the numbers
What the data shows
What we found across the office chairs we compare, plus the checked facts behind each finding.
How many fit
None of the 32 models checked meets all of “I like a suspended mesh seat”, “I want my neck supported when I recline”, “The seat depth has to fit my legs”, and “I like a padded seat”, so the pick goes to the closest practical compromise.
0 models fit, out of 32 checkedShow the facts and the math
How we countedThe count uses each product's current fit ratings for “I like a suspended mesh seat”, “I want my neck supported when I recline”, “The seat depth has to fit my legs”, and “I like a padded seat”. A need with no documented match is not counted.
| Product | Needs it meets | Facts we checked | Sources |
|---|---|---|---|
| SIHOO Doro C300 Pro V2 |
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| Haworth Soji |
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Ready to buy
See today’s price and what owners say
Open either model on Amazon for the current price, customer reviews and delivery options.
SIHOO Doro C300 Pro V2
You want mesh in the seat and in the back.
See price & reviews on AmazonHaworth Soji
Your seat depth has to go below 16.9 inches.
See price & reviews on AmazonEach link opens in a new tab.
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